-#ifndef ARCH_X86_64_h
-#define ARCH_X86_64_h
+#ifndef ARCH_X86_64_H
+#define ARCH_X86_64_H
-#include "arch-x86-common.h"
-
-#define FIO_ARCH (arch_x86_64)
-
-#ifndef __NR_ioprio_set
-#define __NR_ioprio_set 251
-#define __NR_ioprio_get 252
-#endif
+static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ asm volatile("cpuid"
+ : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
+ : "0" (*eax), "2" (*ecx)
+ : "memory");
+}
-#ifndef __NR_fadvise64
-#define __NR_fadvise64 221
-#endif
+#include "arch-x86-common.h" /* IWYU pragma: export */
-#ifndef __NR_sys_splice
-#define __NR_sys_splice 275
-#define __NR_sys_tee 276
-#define __NR_sys_vmsplice 278
-#endif
+#define FIO_ARCH (arch_x86_64)
#define FIO_HUGE_PAGE 2097152
#define ARCH_HAVE_SSE4_2
#define ARCH_HAVE_CPU_CLOCK
+#define RDRAND_LONG ".byte 0x48,0x0f,0xc7,0xf0"
+#define RDSEED_LONG ".byte 0x48,0x0f,0xc7,0xf8"
+#define RDRAND_RETRY 100
+
+static inline int arch_rand_long(unsigned long *val)
+{
+ int ok;
+
+ asm volatile("1: " RDRAND_LONG "\n\t"
+ "jc 2f\n\t"
+ "decl %0\n\t"
+ "jnz 1b\n\t"
+ "2:"
+ : "=r" (ok), "=a" (*val)
+ : "0" (RDRAND_RETRY));
+
+ return ok;
+}
+
+static inline int arch_rand_seed(unsigned long *seed)
+{
+ unsigned char ok;
+
+ asm volatile(RDSEED_LONG "\n\t"
+ "setc %0"
+ : "=qm" (ok), "=a" (*seed));
+
+ return 0;
+}
+
#endif